Tal Zvi Zaks is Chief Medical Officer at Moderna, Inc. (MRNA). They have made 71 open-market trades across 2 companies since 2019, most recently 2026-08-05.
CIK 0001690927
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 71 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TEVA | 73,247 | $3.0M |
| MRNA | 5,000 | $1.1M |
| Total | $4.1M |
Shares reported on the most recent Form 4, priced at the 2026-08-10 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TEVA | SELL | 2026-08-05 | 2026-08-10 | $34.87 | $593 | +1.8% | +1.9% | — |
| MRNA | SELL | 2021-06-30 | 2021-07-02 | $237.00 | $1.2M | +13.1% | +50.9% | +67.6% |
| MRNA | SELL | 2021-06-23 | 2021-06-25 | $219.65 | $1.1M | +4.4% | +50.6% | +103.9% |
| MRNA | SELL | 2021-06-16 | 2021-06-21 | $200.00 | $1.0M | +11.6% | +52.4% | +100.9% |
| MRNA | SELL | 2021-06-09 | 2021-06-11 | $212.30 | $1.1M | -0.6% | +12.2% | +113.8% |
| MRNA | SELL | 2021-06-02 | 2021-06-03 | $183.90 | $920K | +1.9% | +17.9% | +97.0% |
| MRNA | SELL | 2021-05-26 | 2021-05-27 | $168.70 | $844K | +21.7% | +24.8% | +122.7% |
| MRNA | SELL | 2021-05-19 | 2021-05-20 | $155.74 | $779K | +13.4% | +23.3% | +136.1% |
| MRNA | SELL | 2021-05-12 | 2021-05-13 | $154.11 | $1.5M | +12.2% | +37.5% | +155.4% |
| MRNA | SELL | 2021-05-10 | 2021-05-11 | $158.42 | $989K | +4.8% | +40.8% | +214.4% |
| MRNA | SELL | 2021-05-03 | 2021-05-04 | $186.56 | $1.5M | -9.4% | +9.6% | +94.6% |
| MRNA | SELL | 2021-04-26 | 2021-04-27 | $175.80 | $1.5M | -10.5% | -1.6% | +84.2% |
| MRNA | SELL | 2021-04-19 | 2021-04-20 | $162.68 | $1.4M | +12.7% | +4.6% | +97.7% |
| MRNA | SELL | 2021-04-12 | 2021-04-13 | $138.93 | $1.1M | +13.0% | -2.5% | +55.8% |
| MRNA | SELL | 2021-04-05 | 2021-04-06 | $129.71 | $1.3M | +29.0% | +21.3% | +76.3% |
| MRNA | SELL | 2021-03-22 | 2021-03-23 | $144.64 | $226K | -5.3% | +22.5% | +51.7% |
| MRNA | SELL | 2021-03-15 | 2021-03-16 | $140.96 | $2.6M | -11.3% | +6.4% | +38.0% |
| MRNA | SELL | 2021-03-08 | 2021-03-10 | $128.41 | $3.9M | +9.5% | +6.0% | +60.2% |
| MRNA | SELL | 2021-03-01 | 2021-03-02 | $150.25 | $2.7M | -6.2% | -9.3% | +26.4% |
| MRNA | SELL | 2021-02-22 | 2021-02-24 | $164.84 | $824K | -18.1% | -11.6% | +12.3% |
| MRNA | SELL | 2021-02-08 | 2021-02-09 | $184.80 | $1.0M | -12.8% | -23.1% | -13.2% |
| MRNA | SELL | 2021-02-01 | 2021-02-02 | $163.09 | $1.1M | +17.3% | -15.5% | +18.8% |
| MRNA | SELL | 2021-01-25 | 2021-01-26 | $143.15 | $945K | +16.5% | -1.9% | +17.5% |
| MRNA | SELL | 2021-01-19 | 2021-01-20 | $124.09 | $827K | +25.7% | +39.5% | +25.1% |
| MRNA | SELL | 2021-01-11 | 2021-01-12 | $117.12 | $586K | +18.8% | +48.3% | +12.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.